Pack of 3: O Ring for Big Blue Canister Housing

This O-ring is used to seal water filter housings. It has an inside diameter of 5-1/2" and outside diameter of just over 5-3/4 inches and is made of nitrile butadiene rubber (Buna-N) for flexibility and resistance to abrasion and tearing. The o-ring fits Pentek Big Blue filter housings, which are used in various applications, such as drinking water purification, swimming pools, industrial processes, and more.

Compatible with the following filter housing models: 
Pentek #10 and #20 Big Blue opaque filter housings with 1" or 1-1/2" inlet/outlet connections 
APEC HBB-20/HBB-10 series (input sizes: 3/4", 1", 1.5"), HBC-20/HBC-10 series (input sizes: 3/4", 1", 1.5") 
Ace Hardware 49561 
Ametek Kleen-Plus HD-10-R50, BBS 
American Plumber W10-PR, 152014, W2010-PR, 152015, W15-PR, 152016, W2015-PR, 152017, WWHC, 152022 
Culligan HD-950, HD-950A 
Pentek 150237, 150239, 150469, BBFS-22, BBFS-222